| 基于地下水流系统理论的岩溶隧道涌突水来源及路径分析 |
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| 引用本文： | 曾斌,陈植华,邵长杰,彭丁茂.基于地下水流系统理论的岩溶隧道涌突水来源及路径分析[J].地质科技通报,2022,41(1):99-108. |
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| 作者姓名： | 曾斌 陈植华 邵长杰 彭丁茂 |
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| 作者单位： | 中国地质大学（武汉）环境学院;浙江数智交院科技股份有限公司 |
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| 摘 要： | 双龙洞是国家重点风景名胜区,拟建金华山隧道位于浙江省金华市双龙洞景区北东向约12 km处,金华山隧道的开挖将可能导致双龙洞景区岩溶水的疏干,同时隧道也可能遭受岩溶涌突水的安全隐患。基于地下水流系统理论,结合研究区水文地质条件调查成果,岩溶地下水流系统的划分,隧道出口段关键岩溶分布区地质结构的分析,以及水文地球化学测试分析结果,对双龙洞与隧址区之间各岩溶地下水流系统间的水力联系及涌突水可能性进行了分析。结果表明,隧道出口段开挖若揭露至其所处岩溶含水层并进行排水,影响的只是周边有限的岩溶水及裂隙水,不会直接连通研究区西侧大规模岩溶地下水流系统;隧道施工和运行期间对双龙洞景区的岩溶水基本不会产生影响,同时双龙洞岩溶水也不会对隧道出口段形成直接的涌突水威胁。在岩溶区隧道涌突水来源的研究中,基于地下水流系统理论合理划分岩溶地下水流系统并分析各系统间水力联系,是分析涌突水来源及防范涌突水灾害的必要前提。
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| 关 键 词： | 地下水流系统理论 双龙洞 金华山隧道 岩溶 涌突水 |
| 收稿时间： | 2021-11-02 |
Analysis of source and path of water inrush in karst tunnel based on the theory of groundwater flow system |
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| Zeng Bin,Chen Zhihua,Shao Changjie,Peng Dingmao.Analysis of source and path of water inrush in karst tunnel based on the theory of groundwater flow system[J].Bulletin of Geological Science and Technology,2022,41(1):99-108. |
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| Authors: | Zeng Bin Chen Zhihua Shao Changjie Peng Dingmao |
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| Affiliation: | (School of Environmental Studies,China University of Geosciences(Wuhan),Wuhan 430078,China;Zhejiang Institute of Communications Co.,LTD.,Hangzhou 310000,China) |
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| Abstract: | Shuanglong Cave is a famous national scenic spot.The proposed Jinhua Mountain Tunnel is located about 12 km northeast of the Shuanglong Cave Scenic Area in Jinhua City, Zhejiang Province.The excavation of the Jinhua Mountain Tunnel may cause the karst water in Shuanglong Cave Scenic Area to be drained.At the same time, the tunnel may also be possiblely suffer the danger of karst water inrush.Based on the theory of groundwater flow system, combined with the survey results of hydrogeological conditions in the study area, the division of karst groundwater flow systems, the analysis of the geological structure of the key karst distribution areas at the exit of the tunnel, and the results of hydrogeochemical tests, the hydraulic connection between the two karst groundwater flow systems where the Shuanglong Cave and the tunnel site are located and the possibility of water inrush were analyzed.The results show that: if the tunnel exit section is exposed to the karst aquifer and drained, it will only affect the limited karst groundwater and fissure water around it, and will not directly connect to the large-scale karst groundwater flow system on the west side of the study area; during the tunnel construction and operation period, the karst groundwater in the Shuanglong Cave Scenic Area will basically not be affected, and the karst groundwater in the Shuanglong Cave will not pose a direct threat of water inrush at the exit section of the tunnel.In the study of water inrush source in karst areas, the rational division of karst groundwater flow systems based on the theory of groundwater flow system and analysis of the hydraulic connections between the systems are necessary prerequisites for analyzing the source of water inrush and preventing water inrush disasters. |
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| Keywords: | groundwater flow system theory Shuanglong Cave Jinhua Mountain Tunnel karst water inrush |
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